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Getting Started with Development

Prerequisites​

Before you begin development, ensure you have the following installed:

  • Node.js (v18 or higher)
  • npm (v9 or higher)
  • MongoDB (v6 or higher)
  • Git

Setting Up the Development Environment​

  1. Clone the repository:
git clone https://github.com/TadashiJei/EyeNetProject.git
cd EyeNetProject
  1. Install dependencies:
# Install backend dependencies
cd eyenet/backend
npm install

# Install frontend dependencies
cd ../frontend
npm install
  1. Set up environment variables:
# Backend (.env)
PORT=3000
MONGODB_URI=mongodb://localhost:27017/eyenet
JWT_SECRET=your_jwt_secret
NODE_ENV=development

# Frontend (.env.local)
NEXT_PUBLIC_API_URL=http://localhost:3000/api
  1. Start the development servers:
# Start backend server
cd backend
npm run dev

# Start frontend server (in another terminal)
cd frontend
npm run dev

Project Structure​

eyenet/
├── frontend/                 # Next.js frontend
│   ├── app/                 # App router
│   │   ├── (auth)/         # Authentication routes
│   │   ├── dashboard/      # Dashboard routes
│   │   ├── settings/       # Settings routes
│   │   └── layout.tsx      # Root layout
│   ├── components/         # Reusable components
│   │   ├── ui/            # UI components
│   │   ├── charts/        # Data visualization
│   │   └── forms/         # Form components
│   ├── lib/               # Utilities and helpers
│   └── styles/            # Global styles
├── backend/                # Backend services
│   ├── src/
│   │   ├── controllers/   # Route controllers
│   │   ├── services/      # Business logic
│   │   ├── models/        # Data models
│   │   └── utils/         # Utilities
│   └── tests/             # Backend tests
└── shared/                # Shared types and utilities
    └── types/             # TypeScript types

Development Workflow​

  1. Create a Feature Branch
git checkout -b feature/your-feature-name
  1. Make Changes
  • Follow the coding style guide
  • Add tests for new features
  • Update documentation as needed
  1. Run Tests
# Backend tests
cd backend
npm test

# Frontend tests
cd frontend
npm test
  1. Submit Pull Request
  • Push your changes
  • Create a pull request
  • Wait for review and approval

Code Style Guide​

TypeScript​

  • Use TypeScript for all new code
  • Enable strict mode
  • Define interfaces for data structures
  • Use proper type annotations

React Components​

  • Use functional components
  • Implement proper error boundaries
  • Follow React hooks best practices
  • Implement proper loading states

API Development​

  • Follow RESTful conventions
  • Implement proper validation
  • Add Swagger documentation
  • Handle errors consistently

Testing​

Unit Tests​

  • Test individual components
  • Mock external dependencies
  • Achieve high coverage
  • Test edge cases

Integration Tests​

  • Test component interactions
  • Test API endpoints
  • Test database operations
  • Test authentication flows

End-to-End Tests​

  • Test complete user flows
  • Test across components
  • Test in production-like environment
  • Test different devices/browsers

Debugging​

Backend​

  • Use proper logging
  • Implement error tracking
  • Use debugging tools
  • Monitor performance

Frontend​

  • Use React Developer Tools
  • Implement error boundaries
  • Use performance monitoring
  • Debug network requests

Performance Optimization​

Frontend​

  • Implement code splitting
  • Optimize images
  • Use proper caching
  • Minimize bundle size

Backend​

  • Implement caching
  • Optimize database queries
  • Use proper indexing
  • Monitor memory usage

Security Best Practices​

  1. Authentication

    • Use JWT tokens
    • Implement proper validation
    • Handle token expiration
    • Secure password storage

  2. Authorization

    • Implement role-based access
    • Validate permissions
    • Protect sensitive routes
    • Log access attempts

  3. Data Security

    • Encrypt sensitive data
    • Validate input data
    • Prevent SQL injection
    • Use HTTPS

  4. API Security

    • Rate limiting
    • Input validation
    • CORS configuration
    • Security headers